Forward incoming call to PSTN failed although trunk registration successful

[200765 (Alberto Amori)]

@david55

is either specifying allow=all [codecs], although I thought that bug had been fixed (although it is still not a good think to do), or disallow=all with no codecs then allowed

The current configuration of this extension is:

disallowed codecs=all
allowed codecs=alaw&ulaw&g729